Drink mixer



March `17. 1925.

1,529,830 R. A. BLlsH ET AL DRINK MIXER Filed Feb. l1, 1924 Patented Mar.l 17, 1925.

UNITED STATESA PATENT OFFICE.

RUSSELL A. BLISH .AND STEPHEN J'. POPLAWBKI, 0l' RACINE, WISCONSIN, ASSIGNOBS T ARNOLD ELECTRIC COMPANY, OF RACINE, WISCONSIN, A CORPORATION 0F WIS- Dann: luxus.

Anuman ma rem-nary 11, im. sei-aa 1ro. 691,991.

To all whom it may concern:

Be it known that we, RUSSELL A. Bmsn and STEPHEN J. Pormwsm, citizens of the UnitedStates, and residents of Racine, in 5 the county of Racine and State of Wisconsin, have invented certain new and useful Improvements in Drink Mixers, of which the following is a full, clear, concise, and

exact description, reference being had to the accompan ing'drawin forming a part of -this spec cation.`

This invention relates to drink mixers such as are used to mix the ingredients of beverages served as soda fountains.

In prior practice, it has been common to fix the agitator shaft to the motor shaft.

en the drink mixing receptacle is removed froln a mixer of this type, it leaves the agitator shaft, with the ingredientsof the drink thereon, exposed to dust, dies, and otherinsects in the atmos here, thus pro viding a medium by whicll disease germs may readily be communicated to the consumers of the drinks mixed. y

There is another objection to the fixed agitator type of mixer. The agitator should extend nearl to the bottom of the mixing receptacle. t is necessary, t erefore, that the agitator project about s' inches from the motor. As the motor is driven at `a speed of approximately 10,000 to 12,000 1t. P. M., any deviation of the a 'tator from true will cause vibration of t e agitator. If the agitator is greatl bration is very great, o ntimes causing the entire mixing apparatus to vibrate and creep along the counter. This violent vibratlon of the agitator rapidly ruins the motor bearings, makin it necessary to send the mixer to the shop or repairs.` Not only does the vibration Wear out the bearings,"

but as a large portion motor is used up in 'causing the vibration, the speed of the agitator is slowed down 'ver materially.

s soon asthe bearings in the motor be-r come slight] worn, the vibration also causes a very decidia'd ratti' 'or chattering. Even tholigh the agitatoruaft is properly trued before the mixer leaves the factory, the oper- Y ator in handling the `mixer and an placing ofthe ener of the out of true, the vi-V the receptacle into and removing it from its almost invariably springs e agitator before the mixer has been long in use, thus requiring that the device be overhauled and the shaft trued u It is found that of the mixers returne to the shop "for repairs, about 90% have been rendered defective on account of the shaft getting out of true.

s the agitator of the present invention is provided with a bearing at the lower end thereo the vibration of the shaft above referred to is prevented, thus causing it to run quietly without vibration, and greatly increasing the life of the mixer. The object of the present invention is to provide an improved sanitary drink mixer of the type in which the agitator and agitator shaft are removable with the drink mixing receptacle, and which may be operated as easily as are the mixers of the fixed agi.- tator shaft type.

One of the features of the present invention is the frame mounted on one side of the receptacle for supporting the agitator shaft, and so arranged t at there will be sutlicient unobstructed opening at the top of the mixing container to permit the ingredients of the drink readily to be placed in the container, even when in operative relation to the motor, and the drinks poured from the container without removing the agitator from the Jreceptacle.

Another feature of the invention residesin the bearingprovided to support the lower end of the agitator shaft. y

A further feature of theV invention 1s the displaceable guide member which permits the receptacle with the agitator shaft thereonto be forced upwardly into operative position and which serves firmly to hold the rece tacle fon its of t e agitator. A. further feature of the invention lies in the provisionof a mixer having an agitator which is mounted in and is removable with the mixin receptacle. and is equipped with a separa le connection to the motor shaft. of a switch for controlling the motor and automatically actuated by manual movement of the receptacle itself when disposing the o erative position, t

support during operation receptacle and said separable connection in, and removing them from, operative positions.

-Other features and advanta pear from time to time as the the invention progresses.

It is believed that. further disclosure of the invention will be understood most readily from a detailed description thereof taken in connection with the accompanying drawinos, in which igure 1 is a side view of the drink mixer with parts broken away to show the agitator within the mixing receptacle `and the clutch mechanism b means of which the agitator shaft is coupled to the motor shaft;

Figure 2 is a view of the agitator' shaft and its frame removed from the mixing receptacle;

Figure 3 is a plan view of the frame dis# closed in Figure 2, showing it in position on the edge of the receptacle;

Figure 4 is a section on line 4-4 of Flgure 1, and

Figure 5 Figure 1.

Referring now to the drawings, 1n which like reference characters indicate like parts in the several views, L is the base of the mixer to which is secured the upwardly extendin standard 11. Fixed to the standard 11, ad]acent to the upper end thereof, is an electric motor 12 o the usual or any desired type. Motor 12 is provided with es will apescription of is a section on the line 5-5 of a downwardly extending shaft 13. Fixed to the shaft 13, by means of the set screw 14, or any other desired manner, is the sleeve 15, the lower end of which has the longitudinally extending opening 16 therein adapted to receive the substantially triangular u per end 17 of the agitator shaft 18. The s eeve with its opening 16 and the upper end 17 of shaft 18 form the cooperating coupling members for the motor s aft and the agitator shaft, respectively, which permit the shafts readily to be joined or separated from each other.

The motor 12 is provided with the downwardly extending collar 19 to which is secured, by means of the set screw 20, the sleeve 21. Slidable within the sleeve 21 is a second sleeve 22. The sleeve 21 is provided with the inwardly directed ange 23, and sleeve 22 with the outwardly directed flange 24, which are ada ted to limit the d ownward movement of tlie sleeve 22 relative to sleeve 21. s ring 25 is positioned between the upper en of the -sleeve 22 and'l the collar 19 and tends normally to force the sleeve 22 downwardly. Sleeve. 22 Ais of a size snugly to iit the sleeve' 15 which forms the cou ling member carried at the lower end of t e motor shaft 13.

At 26 is shown the drink mixing receptacle or container, to one side of which is l 11 is a pair of Sprin secured the supporting frame 27 for the agitator shaft 18. The supportin frame 27 may be secured to the receptac e 26 in any desired manner, but in theyform herein disclosed, the support 27 is provided adjacent to the upper end thereof with the outwardly and downwardly extending finger 28 between which and the body of the su port 27 the upper edge of the receptac e 26 is adapted snugly to bereceived. The finger 28 may very conveniently be formed by stamping it out of the body of the support 27. The receptacle 26 is provided with a plurality of longitudinally extending inwardly directed beads 9 which assist in preventing the li uid of the drink from swirlin over the e ge of the container. In certa1n instances, it may be 'found desirable to position the support 27 over one of the beads 9, as shown in Figure 5. When thus arranged, the support 27 may be trans- -versely curved so as to conform substantially to the bead 9.

Secured to the laterally extending flange 29 of the support 27, in any desired manner, is a bearing 30 provided with the up wardly and inwardly curved fingers 31 adapted partially to surround the ball i 32 formed at the lower end of the shaft 18. The support 27 at the upper end thereof is provided with the laterally extending flange 33 within which is secured the sleeve or collar 34 provided with an opening through which the upper end of the agitator shaft 18 extends. The outer surface of thecollar 34 is taperedso as snugly to engage the tapered edge of the sleeve 22.

Secured to the agitator shaft 18 are the agitator elements 35 which, in the preferred embodiment of the invention, comprise the discs which are corrugated, the corrugations extending radially of the discs. This form of agitator element has been found to be vastly superior to the propeller type in that 1t causes the drink to be aerated, thus producing a, foam on the' finished drink, while the propeller type of agitator cuts through the-liquid instead of aerating it and produces an inferior drink.

Pivotally joined to the standard 11, by means of thc pivot in 36, is the receptacle support 37 provide with the laterally ex tending flange 38 ada ted to underlie the bottom of the receptac e to hold the triangular upper end 17 of the agitator shaft 18 in operative relation to the clutch member 15 fixed to the motor shaft 13.

Insulatively mounted withinthe standard 39 and 40 which are e circuit for the motor en springs 39 and 40 are in engagement, the motor circuit is closed, but when the spri 39 and 40 are separated, the circuit for t e motor is broken.

Carried by the receptacle support 37 is arran dto control 12. 'h

n 41 will be forced about its a pin 41 which passes through the opening 42 in standard 11 and into engagement with the block 43 of insulating material secured to' spring 39. The tension in the spring 39 is such that when the receptacle 26 is not resting on the supporting flange 38z the pin to the right, as viewed in Fig. 1, so as to separate the spring 39 from spring 40. When, however, the weight of the receptacle is placed on the supporting flange 38, the support 37 will rotate slightly supporting pin 36, thus causlng contact spring 39 to move into engavement with contact spring and closing tie circuit for the motor.

The operation of the device is as follows:

When it is desired to mix a drink, the receptacle will ordinarily be laced on the counter and the several ingredients comprising ,the drink placed therein. The operator will then grasp the receptacle with the agitator shaft therein, and lace it in position. In doing so, the taperedp member 34 which surrounds the upper end of the agitator shaft 18 will be placed within the tapered end of the sleeve 22. If the side of the receptacle to which the agitator is secured is positioned against the support 37 and slid upwardly thereon, it will l uide the member 34 into the sleeve 22. T e rece tacle'will now be forced slightly upwardllj)y to compress the spring 25, thus permitting the Substantially triangular upper end 17 of the agitator shaft to be placed within the openinf.,r 16 in the coupling member 15 secured to the end of the motor shaft 13. The lower end of the receptacle will now be moved slightly toward the standard 11 to position it upon the flange 38 at the lower end of the receptacle support 37. Upon releasing the receptacle, the support 37 will tilt slightly to the left, as viewed in Figure 1, and forcing spring 39 into contact with spring 4Q, thus closing the circuit of the moto-r 12. The motor will now be started into operation and the rotary movement of the shaft 13 will be communicated to the agitator shaftthrough the medium of the coupling members 15 and 17.

It will be noted that the en agement of the tapered surface of the coar 34 with the sleeve 22 acts to center the agitator with respect to the motor shaft or spindle, and direct the coupling member 17 on the agitator shaft into the pling member 15 on t e motor shaft. The sleeve 22 and spring 25 form a resilient connection between the agitator parts and the motor which not only assists in centering the agitator shaft in respect to the motor shaft, but also acts by its constant pressure to maintain the parts snugly in position and thus tends toprevent of the ap aratus. i n

After t e'ingredients of the dfink have .clined slightly o ening 16 of the couvibration and rattling" been sutciently mixed, the receptacle will be removed by forcing it slightly upwardly against the tension of the spring 25, then movin the lower end thereo outwardlyso as to lscngage it from the laterally' extending ange 38 when it can 'be removed from the mixer, in an obvious manner. As soon as the weight of thelreceptacle is from the support 38, sprin 39 will act to move the pin 41 to the rig t, as viewed in Figure 1, thus separating s rings 39 and 40, and opening the circuit o the motor 12.

By reference to Figure 1 of the drawings, it will be noted that the motor l2 is so mounted that the shaft 13 thereof is into the vertical. It will also be noted that the agitator shaft 18 is sub- 'stantilly parallel to one side of the receptacle and 1s so 1positioned as to align with the shaft 13. y placing the agitator adjacent to the side of the receptacle toward the supporting standard, the agitator shaft may be readily placed in alignment with the motor shaft without necessitatin mounting the motor greatly to one side of t e supporting standard.

t whenever the drink mixing 'rece tacle is removed from the mixer after a rink has been mixed, to wash the receptacle by plunging it into al tank of water. In the present device, as the a itator and` agitator support are carried y the receptacle,- they arev cleansed whenever the receptacle is thus washed. Furthermore, it will be noted that the support carrying the agitator shaft is readily removable from the receptacle, thus ermitting a more thorough cleansing of t ereceptacle and the itator parts whenever desired.

In drin mixers in which the agitator and shaft are concentrically dis sed in the receptacle, the operation of t e agitator tends to cause a swirling of the the receptacle, which will produce a deep vortex at the center of the receptacle, tending to cause the contents to rise up along the walls and over the upper edge of the receptacle. As the agitator shaft of the present invention is the receptacle and substantiall paralleln to one side thereof, there is much less tendency to cause the vortex above referred to, and

is customary,

the contents of the recepacle are muclrmore l thoroughly agitated.

s t e present device requires that the lower" end of the receptacle be tilted only slightly away from the base in order to release it from the mixer, there is much less danger of spilling the contents of the receptacle when removing it from or placing it in operative relation to the mixer than occurs when the rece tacle must be moved downwardly materia y in order to free itself from the lower end of the downwardly projecting agitator shaft.

removed contents of Y arranged eccentrically of i It isr desirable 'that a constructed that the operator-may insert the receptacle in the mixer and remove it therefrom by the use of only one hand. Due to the slight movement required to disengage the receptacle from the mixer, may be more readily performed byft e operator than with devices heretofore produced.

When the receptacle or container 26 and its connected agitator are disposed in operative position, as illustrated in Figure l. the spring 25 exerts'a downward pressure which serves firmly to hold the receptacle 26 on the flange or shelf 38 of the support 37. The said spring 25, assisting the weight of receptacle 26 and its contents, also serves more positively to hold the motor `circuit controlling contacts closed.

It is to be understood that applicants contemplate many modifications in the various details of the device shown in the present application. A coupling may be emplo ed which differs materially in detail from that herein shown. Different means may be employed for securing the agitator shaft sup` port to the receptacle. A different type of motor-controlling switch and di erent means for operating it may be em loyed. Other variations in the details of app icants device will readily7 suggest themselves to those skilled in the art. The invention, therefore, should be limited merely by the scope of the appended claims.

YHaving thus described our invention, what we. claim as new and desire to secure Y by Letters Patent of the United States is:

1. In a drink mixer, the combination with an electric motor and its shaft, of a standard for supporting said motor in fixed relation to a suitable base, a receptacle, a support for said receptacle relatively movable with respect to said motor when said receptacle is placed thereon, a rotatable agitator detachably mounted in said receptacle and supported independently of said motor, coupling members upon the agitator and motor shaft for operative engagement with and disengagement from one another, yielding means associated with the motor shaft for guiding and centering the agitator relative to the motor shaft and for pressing the container against the support, and a switch controlled by. movement of said support vadapted automatically to close the motor circuit when normalwoperatire relationship is established between said agitator and saidf motor shaft, and to open'the motor circuit when such relationship is'disestablished.

2. In a drink mixer, thecombina'tionwith an electric moteir-A ,having a substantially vertical shaft, off-Lsupport for said motor.,

a receptacle, a support a rotatable lagitator..mounted""onitlie side wall and in said receptacle andwith the receptacle constituting!! structural unit, coudrink mixer be so plin this o eration 4engaging them,

for said receptacle,

operative relation to the members upon the agitator and motor sha t for operative engagement with and disengagement from one another, and means for guiding and centering the agitator relative to the motor shaft.

3. In av drink mixer, a receptacle, an agitator support within said receptacle and secured to the wall thereof, an agitator, a thrust bearing carried by' said support in which the lower end of said agitator is rotatably mounted, a motor, and means for detachably Vcoupling said agitator to said motor.

4. In a drink mixer, a receptacle, an agitator, an agitator support, a sprin cip carried by said support adjacent to te upper end thereof for engaging-the upper edge of said receptacle, a bearing carried by said support in which said agitator 'is rotatably mounted, a motor, and means for detachably coupling said agitator to said motor.

5. In a drink mixer, a receptacle, an agitator, an agitator support comprising a memberextending substantiallyl parallel to one side of said receptacle and adjacent thereto, a. linger carried by lsaid support passing over the upper edgeof said receptacle and engaging the outer side thereof, whereby the `edge of said receptacle is clamped between said finger and said support, a bearing carried by said support in which said agitator is rotatably mounted,

a motor, and means fordetachably coupling said agitator to said motor.4 y

6. In a drink mixer, the combination with a motor and its shaft, of a support for said motor, a rece tacle, a rotatable agitator mounted in 'said receptacle and supported thereby independently of said motor, coupling members on said shaft and agitator respectively for operatively engaging and disand yielding means associated with the coupling device adapted to press the receptacle against the support.

7. In a drink mixer, the combination with an electric motor and its shaft, of a standard for supporting said motor in fixed rela tion to a suitable base, a receptacle, a rotatable agitator mounted in said receptacle and supported ,thereby independently of sait motor, coupling members on said shaft and agitator respectively for'operative engagement withand disengagement from one-another, and a resiliently supported centering guide for directing one of said members into other and for urgdownwardly relatively to lng the rece tacle the .stand 8. YAYIn YaV drinkE mixer, the Vcombination with an electric motor Vand its shaft, of .a support for said motor, a rece tacle, a rotatable agitator mounted Von the side wall and in said receptacle and supported thereby independently of said motor, couplingtmeans including a yielding connection between said ada ted to engage the outer sideof agitator and motor for separably joining said shaft and agitator, and a switch adapted automatically to close the motor circuit when normal operative relationship is established beween said agitator andlaid shaft, and to open the motor circuit when such relationship is disestablished.

9. In a drink mixer, a receptacle, n agitator, an` agitator support comprisin a member extending substantially aralle to one side of said receptacle an adjacent thereto, a finger carried by said support said recep acle whereby the edge of said rece tacle is clamped between said linger and saidJ suport, a longitudinall extending inwardly directed bead in sai receptacle, said su port being arranged in en agement with said bead a bearing carried y said support in which said agitator is rotatably mounted, and means for detachably coupling said agitator to said motor.

10. In a drink mixer, a receptacle, an agitator, an agitator support comprisin a .member extending substantially aralle to one side offsaid receptacle an adjacent thereto, a4 finger carried by `said su ort adapted to en age the cuter side of sai receptacle where y the edge of said rece tacle is clamped between said linger and sai support, the material of said receptacle being pressed inwardly to form a longitudinally extending bead on the inside thereof, and a correspondingroove on the outside thereof, said support eing arranged in engagement with said bead, said finger being ada ted to overlie said groove, a bearing carried y said support in which said a 'tator is rotatably mounted, and means for dtachably coupling said a 'tator to said motor. f

11. a drink mixer, a motor, a shaft extending downwardly from said motor, a Coupling member at the lower end of said 'sha t, a mixing receptacle, a support within said receptacle land supported thereby, an agitator rotatably mounted in said support, a coupling member on said itator arranged to co-operate with said aist mentioned coupling member whereby said agitator is joined to said shaft, said su port, agitator and coupling member carriedp thereby being so arran ed as not to materially obstruct the top opening of said receptacle.

12. In a drink mixer, a motor, a shaft extending downwardly from said motor, a cou ling member at the lower end of said sha a mixing receptacle, a sup ort within said receptacle and supported t ereby, an agitator rotatably mounted in said support a coupling member on said a 'tator arranged to co-operate .with said t mentioned coupling member whereby said agitator is joined to said shaft, said sup rt, a 'tator and coupling member carrie there y being arran ed at one side of a diameter-of the top o said receptacle.

13. In a 'drink mixer, a motor, a shaft extending downwardly from .said motor, a coupling member at the lower end of said Sha t, a mixing rece tacle, a sup ort within said receptacle an supported t ereby, an agitator rotatably mounted in said a coupling member on said a itator arranged to co-operate with said rst mentioned coupling member whereby said agitator is joined to said shaft, said su port, agitator and cou ylin member carrie thereby bein arrange a jacent to one side of said receptacle.

1 4. In a drink mixer, a motor, a shaft extending downwardly from said motor, a coupling member at the lower end of said shaft, a mixing rece tacle,'a sup ort within said receptacle an supported t ereby, an agitator rotatably mountedin said support, a coupling member on said a itator arranged to co-operate with said rst mentioned coupling member whereby said agitator is joined to said shaft, said sudpport, agitator and cou ling member carrie thereby being arrange eccentrically of said receptacle.

15. In a motor driven mixer, the combination with a supporting column, of a motor switch associated with said column having an operating buttom projecting therefrom, and a container support in the path of said button and movable under the inuence of the weight of its container to actuate said switch, a container-a 'tator unit comprisin a container adapted gbr disposition on sai support and an agitator comprising bearings mounted on and in said container, said agi-` tator being adapted to be manipulated into detachable driven relation to said motor when the container is placed on said support and resilient cou ling means acting between the motor and tll'ie agitator resiliently urging the container-agitator unit forward the aforesaid container support.

16. In a motor driven mixer, the combination with a supporting column, a motor. carried thereby, a motor switch mounted within said column and having an operating, button projecting therefrom, and a container sup port ivoted at its upper end to said4 column and Saving an intermediate portion in the path of said button, said container support.v

eing movable to push said button inwardly to actuate the switch upon the placing of a container thereon, and a mixing unit comprising a container and an agitator mounted therein, co-o erating clutch members on said Support.

lill

to the motor and for urgin the mixin unit downwardly relatively to t e aforesai container su port.

17. A rink mixer comprising two principal and co-operating units, namely, a supporting and driving unit and a containeragitator unit; said supporting and driving unit comprising a standard, a container support, and a motor disposed above said support; said container-agitator vunit coniprisin an open-top container and an agitator in and connected to said container and adapted to maintain its ositiou on and in said container in a positions whichrthe latter may assume during rinsing or in the manipulation of the container-agitator unit onto or off of the supporting and driving unit; and co-operating clutch members associated with the motor and agitator` respectively adapted to eiiect a detachable driving connection between the motor and agitator when the container is placed on the aforesaid support.

18. A drink mixer comprising two principal and separable cooperating units, namely, a container-agitator unit and a supporting and driving unit; said container-agitator unit comprising an open top container, agitator bearings firml carried on said container and a rotatab e agitator journalled in said bearings and located in said container and wholly above the bottom thereof, said agitator and bearings being adapted to maintain their rositions on and in the container in all positions which'the latter may assume during the rinsing or when in use; said supporting and driving unit comprising a standard, a container support on said standard and a motor disposed a substantial distance above said su port; cooperating clutch members associate with the a itator and motor respectively adapted to e ect the detachable driving connection between the motor and a itator when the container is disposed on t e aforesaid support, and a resilient guiding and centering device associated with the motor carried clutch member and serving yieldingly to urge the containeragitator unit downwardly.

, 19. In a drink mixer a container-agitator unit comprising an open top container, agitator bearings firmly carried on said container, an agitator held in said bearings for rotation therein, and one of a pair of cooperating clutch members carried at the upper end of said agitator 5 and a supporting an driving unit comprising a container support, an electric motor disposed a substantial distance above said support, the other of said pair of cooperating clutch members carried by the motor, means automatically closing -the motor circuit when the container-agitator unit is placed in operative relation to the supporting and driving unit and spring means associated with one of the clutcli members tending to press the container-agitator unit downwardly relatively to the su porting and driving unit.

20. A rink mixer comprislng two separable cooperating units namely a container- ,agitator unit an a supporting and driving unit; the container-agitator unit comprising an open top container, an agitator bearing structure firmly but detaehably mounted on and in said container, an agitator held in said bearing structure for rotation therein and located wholly above the bottom of said container, said bearing structure and agitator normally being adapted to maintain their positions on and in the container irrespective of the position which the latter mayassunie during rinsing or use, and one of a pair of cooperating clutch members at the upper end of said agitator; said supporting and driving unit comprising a container support, a motor disposed above said support and the other of the aforesaid air of cooperating clutch members carriedp by said motor. v

21. In a drink'mixer, an open top container, an agitator bearing structure, an agitator held in said bearing structure for rotation therein, means at the top of said agitator for facilitating its connection with an oi-'erhanging motor, said bearin structure being firmly held on the wall o said container, whereby, regardless of the positions assumed by the container during rinsing or use, all of the aforesaid elements may be manipulated as a unit by grasping the container, a container support and an overhanging motor adapted for detachable driving connection with said agitator.

22. In a drink mixer, a driving unit comprising an overhanging motor and its support and a container-agitator unit, said container-agitator unit comprising an open top receptaclehaving therein an agitator adapted to have its upper end detachably connected in driven relation to said motor, said agitator being connected with said receptacle so as to maintain its position on and in the rcceptacle in all positions which the latter may assume durin rinsing or use.

23. In a drink mixer, a container-a itator unit comprising an open top rece tac e having a rotatable agitator disposed t erein and idurin' detachably connected to a drivin motor and being so connected to the recepta le as to be manipulated by and with the receptacle in all positions which the latter may assume rinsm or use.

25. n a drink mixer, an open topV receptacle having disposed adjacent the inner surface of its side wall an agitator shaft bearing structure, a rotatable agitator shaft held and journalled b said bearing structure, said agitator sha' being arranged to have its upper end operatively detachably connected with a drlving motor, and means detachably but firmly connecting the said bearing structure tothe receptacle whereby said bearing structure and the agitator shaft ma?7 be manipulated by and with the receptac e in all positions which the latter may assume during rinsing or use.

26. In a drink mixer, a supporting and driving unit comprisinga fixed overhead motor and means supporting the motor affording a container support, a containeragitator unit comprising an o en top container and an agitator dispose in and connected with said container, means adapted to afford a detachable driving connection between said motor and the upper end of said agitator, and resilient means urging the container-agitator unit downwardly to the container su port when the agitator is operably detachab y connected with said motor.

27. In a drink mixer, a supporting and driving unit comprising a 'fixed overhead motor and means supporting the. motor affording a container support, a containeragitator unit comprisin an o len top container and an a 'tator lsposedin and connected with sai container, mea-ns adapted to alford a detachable driving connection between said motor and the upper end of said agitator, and resilient means acting upon the container-agitator unit and tending firmly to clamp said container-agitator unit between the motor and the container su port when the agitator is operably detaciiably connected with said motor. r

28. In a drink mixer,y a supportingV and driving unit comprising a fixed overhead motor and means supporting the motor affording a container support, a container-agitator unit comprising an open top container and an agitator disposed 1n and connected with said container, rmeans adapted to afford a detachable driving connection between said motor and the upper e'nd of said agitator, and resilient means associated with the motor acting upon the containeragitator unit and tendin firmly to clamp said container-agitator unit between the motor and the container support when the agitator is operably detachably connected with said motor.

29. In a drink mixer, the combination Vand ail'o with/a supporting and driving unit comprising an overhanging motor, a standard by which the motor is iixedly supported and a container support afforded by said standard; a container-agitator unit comprising an open 4top receptacle and an agitator disposed in and connected with said receptacle; and cooperating clutch elements on the motor and agitator, the said standard being conformed and adapted by its engagement with the container to guide the clutch elements into operative relation when thel Itator unit and to serve as a guide for directing the agitator clutch element into operative relation with the clutch element of the motor when the container is moved upward-v ly alongside the standard.

31. In a drink mixer, the combination of a Container-agitator unit comprising an open topreceptacle and an agitator carried in and connected with said reccptacleand occupying a position alongside of and ad` jacent to a portion of tlie side wall of the receptacle, a clutch element on the upper end of the agitator, a supporting and driving `unit comprising an overhead motor and its supporting standard, and a clutch ele-- ment on the motor, said standard affording a support for the container-agitator unit and serving as a guide to direct'the aforesaid clutch elements into operative relation when that portion of the receptacle by which the a 'tator is carried is presented tothe standar and moved upwardly alongside of the standard.

32. A drink mixer agitator apparatus comprising a rotatable agitator shaft provided at its upper end with. means facilitating its detachable connection with a driving' motor, a bearing structure disposed closely ad'acent to and alongside said shaft ing bearings by which the said shaft is held in said bearing structure for rotation and means for ligmly detacliably holding saidbearing structure against the inner surface of the side wall of an open top receptacle with the bearing structure and shaft constituting no material obstruction to the top opening of the said receptacle.

33. A two unit drink mixer comprising a supporting-driving unit and a containeragitator unit, said supporting-driving unit los llO

oomprisingn'fan overhead motor,l ,ussupporti standard vswitching,mechanism contro I-j ling operation of the moto:` carrier byl the '"standard and comprising a part constituting 5 a yielding support for the container-agitator unit, the container-agitator unit comprsing an open top receptacle and an agitator disposed in and connected with the reeeptacle tov be manipulated by and with the 10 receptacle in the several positions which the lwttenmayf fissnxnefinzinsn'gor and 1 cooperating cl'u'tcliV elements Veamied-by theY motorand ftlfefupper end Othe--agiifmiorI In witness-whereoffwe hereunto subscribe our names this 6th day of February, 1924.

` RUSSELL A. BLISH.

STEPHEN J. POPLAWSKI. Witnesses: y

GEORGE C. SCHMITZ, E. 'M. THOMPSGN.

comprising'an overhead motor, a supportin standard and switching mechanism cont-ro ling operation of the motor carrier by the standard and comprising a part constituting a yielding support for the Container-agita.- tor unit, the container-agitator unit comprising an open top receptacle and an agitator disposed in and connected with the receptacle to be manipulated by and with the l receptacle in the several positions which the Certificate of Correction.

It is hereb certified that in Letters Patent No. 1,529,830, granted Marcht 17,

1925, upon tie application of Russell A. Blish and Stephen J. Poplawski, of

Racine, Wisconsin, for an improvement in -Drink Mixers, errors appear in they printed specification requiring correction as follows: Page 1, line 14, for the word 4 1 read at; same page, line 51, for the word an read in' age 5, line 95, claim 15, for the word bnttom read button; same page and ciaim, line 10S, for the word forward read toward; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the casein the Patent Oiiice. K u

Signed and sealed this 28th day of April, A. D. 1925.

[SEAL] KARL FENNING,

Acting Umma'ssomr of Patents.

Certificate of Correction.

It is hereb certified that in Letters Patent No. 1,529,830, grant-ed March. 17, 1925,V upon tie application of Russell A. Blish and Stephen J. Poplawski, of

Racine, Wisconsin, fox` an improvement in 1)rink Mixers, errors appear in the* printed specification requiring correction as follows: Page l, line 14, as read at; same age, line 5l, for the Word an read in' page 5, line 95, claim 15, for the wor buttom read button; same age and omm, lino 108, for the word forward read tmvard; and that the said letters Patent should be read with these corrections` therein that the same may conform to the record of the casein the Pant Office. i

Signed and seg-led this 28th day of April, A. D. 1925. Y

[SEAL] KARL FENNING,

Acting Umnmfssoner of Patents.

01' tho Word I 

